Abstract: A rotation damper has a housing, a magnetic field source and a damper shaft designed as a hollow shaft, and a coupling rod arranged inside the damper shaft. The hollow shaft and the coupling rod form interacting transmission units and convert a relative axial movement of the coupling rod into a rotational movement of the hollow shaft. A displacer unit is arranged in the housing. The displacer unit includes the damper shaft and meshing displacer components that are rotatable in relation to each other. The displacer unit contains a magnetorheological fluid as the working fluid and can be operated thereby. The magnetic field source is configured for applying a magnetic field to the displacer components in order to dampen a rotational movement of the damper shaft.

Abstract: A housing arrangement for a flow meter that has at least one housing (2) and at least one display device (3) which is located on the housing (2). The maintenance effort for the flow meter is reduced by there being at least one photovoltaic cell on the housing in a manner configured and arranged surrounding the at least one display device.

Abstract: Systems, apparatuses, and techniques for video delivery can include one or more of the following: a wireless camera arranged in a wearable form factor comprising a battery to provide energy, and configured to generate a video feed, and a base station in wireless communication with the wireless camera and configured to receive the video feed from the wireless camera and process the video feed, and a video portal device communicatively coupled with the base station and configured to receive the processed video feed from the base station and deliver at least a portion of the processed video feed to one or more remote clients. A base station can reserve a wireless channel for the wireless camera for a video transmission.

Abstract: A method and apparatus relates to systems powered by energy stored in capacitors. The capacitors may be charged using any desired power source. In one example, a camera system uses a combination of solar panels and a capacitive network to power the camera system with minimal required maintenance.

Abstract: A portable electronic device comprises a main body, a lens module and a solar panel. The main body comprises a battery pack and a photosensitive element. The lens module is connected with the main body. The solar panel is disposed between the photosensitive element and the lens module, and the solar panel is electrically connected with the battery pack. The solar panel is able to receive the light focused by the lens module and convert the light into electricity to supply to the battery pack.

Abstract: A functional device has an operating button to control a function, a display window containing an indication of the function and a luminous device, containing a luminous material to illuminate the operating button and display window. The luminous device is formed from a one-piece continuous member containing luminous material. The material forming the luminous material is an aluminum oxide luminous material. A plurality of corresponding operating buttons and display windows may be formed in the functional device, with the luminous device formed of a plate to back light the plurality of display windows, luminous material formed in the plurality of operating buttons and connecting arms to connect plate to the operating buttons.

Abstract: An apparatus adapted for use with a solar cell, such as a camera, includes a body and a cover member to which the solar cell is attached, where the cover member is movable between an open position and a closed position with respect to the body of the apparatus. The apparatus further includes an air layer providing member which provides an air layer between the cover member and the body of the apparatus when the cover member is in the closed position, thereby reducing transmittance of heat from the solar cell to the body of the apparatus.

Abstract: An apparatus adapted to use a solar battery or an apparatus applied to such an apparatus comprises a first cover which is provided on the apparatus adapted to use the solar battery, a second cover which is provided on the apparatus adapted to use the solar battery and which is capable of moving independently of the first cover, and an opening device for opening both of the first and second covers when a temperature rise occurs.

Abstract: An apparatus adapted for use with a battery includes an insulation unit for providing an insulating state between the apparatus and the battery, and a releasing unit for releasing the insulation unit in cooperation with an operation relating to use of the apparatus and for maintaining thereafter the released state independently of the operation relating to the use of the apparatus. Alternatively, an apparatus adapted for use with a chargeable unit charged by a solar cell, includes an insulation portion for providing an insulating state between the solar cell and an operation circuit of the apparatus in a state in which the chargeable unit can be charged by the solar cell. A packing device is adapted for use with an apparatus which uses energy provided by a solar cell, the device includes a light provided by a transmission portion for providing a state in which external light can act on the solar cell when the apparatus is packed in the packing device.

Abstract: A lens device that is not affected by changes in environmental conditions and is capable of manual and automatic focussing of the lens. Specifically, the lens device generates an appropriate operational load during manual operations of the lens using a simple structure. The lens device includes a lens barrel containing a lens holding barrel holding the lens. The operation ring has the ability to rotate and is fitted around the outer periphery of the lens barrel. The lens drive device includes a motor, a deceleration device, a motor drive circuit, and a variable resistor. The motor has the ability to generate electricity. The selection switch selectively connects the motor to either the motor drive circuit or the variable resistor. During automatic operation, the motor is connected to the motor drive circuit. The motor drive circuit is the power source of and drives the motor. The driven motor rotates the operation ring to adjust the focus through the deceleration device.